Expecting the Sweet 16 every season will lead to some disappointments. Will we have a shot at the Sweet 16 every season? Probably. But upsets do happen and OU will participate in being upset in the tournament as well.
That's why they are called upsets. You get disappointed after them but you shouldn't allow that to alter your expectations. I guarantee you Jeff Capel expects to be in at least the Sweet 16 every year.